HD Korea Shipbuilding & Offshore Engineering said Thursday it has signed a contract with a European shipowner to build six very large ammonia carriers. The deal is worth 1.08 trillion won ($1.2 billion), the intermediate shipbuilding holding company of HD Hyundai said in a regulatory filing. The vessels will be built by HD Hyundai Samho and delivered by the second half of 2029. With the latest order, HD Korea Shipbuilding has secured orders for 104 ve